Educational, advertising, computing, recitation, exhibition, and display dial.



No. 239,201. EATENTED SEPT. 15, 1903.

E. s. MORTON EDUCATIONAL, ADVERTISING, COMPUTING, REGITATION,

' EXHIBITION, AND DISPLAY DIAL.

APPLICATION FILED mm a. 190.3.

N0 MODEL. 2 SHEETS-SHBET 1 MUM y gy M @215 W No. 739,201. PATENTED SEPT. 15, 1903.

E. s. MORTON.

EDUCATIONAL, ADVERTISING, COMPUTING, REGI'I'ATION, EXHIBITION, AND DISPLAY DIAL.

, 1903. NO MODEL. APPLICATION FILED FEB 9 2 SHEETS-SHEET 2.

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UNITED STATES Patented September 15, 1903.

PATENT OFFICE.

ELLIS S. MORTON, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO GEORGE W. DAVIS, OF ST. LOUIS, MISSOURI.

EDUCATIONAL, ADVERTISING, COMPUTING, RECITATION,EXHIBITION, AND DISPLAY DIAL.

SPECIFICATION forming part of Letters Patent No. 739,201, dated September 15, 1903.

Application filed February 9, 1903. Serial No. 142,672. (No model.) I

To all whom it 71mg concern.-

Be it known that I, ELLIS S. MORTON, of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Educational, Advertising, Computing, Recitation, Exhibition, and Display Dials, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to educational, advertising, computing, recitation, exhibition, and displaydials and it consists of the novel construction, combination, and arrangement of parts hereinafter shown, described, and claimed.

The object. of my invention is to provide an improved device for the purposes mentioned in the preceding paragraph.

In the drawings, Figure 1 is a front elevation of the device mounted upon a supporting frame or bracket. Fig. 2 is a plan view of same. Fig. 3 is a section on the line 3 3 of Fig. 1. Fig. 4: is a view of the opposite side of the dial from that shown in Fig. 1. Fig. 5 is an elevation of a portion of the rotary disk. Fig. 6 is a view of one of the rotary screens for said disk. Fig. 7 is a detail section on the line 7 7 of Fig. 4. Fig. 8 is a detail section on the line 8 8 of Fig. 4,.

In the drawings, 1 indicates one face of the dial, which is preferably made of sufiicient size to be readily discerned at considerable distance, Inmost cases I mount the dial 1 pivotally by means of the pivots 2 upon a suitable frame or' bracket 3, and the latter is arranged to be secured in position upon the wall at a suitable height from the floor by means of screws or other fastenings 4E. The pivots 2 are preferably made to engage the dial 1 near one edge of the latter, so that the same may be turned to expose first one side and then the other side in a manner similar to that in which the leaves of a book are pivoted to the cover.

5 indicates suitable hooks, which are secured to the bracket 3 and project over the dial l'to retain the same in position with relation to the said bracket.

In the dial 1 is cut a'large sight-opening 6, which is preferably located centrally near the lower portion of said dial, and a smaller sight-opening 7 is formed in said dial near the left-hand edge and centrally of the height thereof. There is a duplicate of the said dial secured thereto at a distance in the rear thereof, which I have marked with the numeral 8; but there is a space between said two dials centrally within which is mounted the rotary disk 9 upon the central pivot 10. Said rotary disk is loosely mounted upon said pivot and is provided in its periphery with a series of teeth 11, which are spaced apart at regular intervals and which are made use of as projections to be engaged by the fingers of the operator in rotating said disk during use, and said teeth are also made use of in computing in the manner hereinafter described. Said disk is provided upon its opposite sides with various marks and articles, depending upon the use to which the device is to be put. For instance, if the device is to be used as an educational appliance in kindergarten work, I may place an annular line of illustrations of various things,'as indicated by the numeral 12, (see Fig. 5,) so that when said disk is turned the various pictures will be exhibited at the sight-opening 6. I place upon said disk a series of annular lines of marks, words, letters of the alphabet, or numerals, as particularly shown in Fig. 5. All these should be placed upon one face of the said dial, while upon the opposite face thereof, which I denominate the computing side, I place an annular line of numerals-say, from 1 to 100, inclusive. I may also place upon the same face of said disk annular lines of small letters of the alphabet, the reverse side of said disk having, preferably, capital letters, as shown in Fig. 5. One of said small letters is indicated in Fig. 4 by the letter a. (Shown in dotted lines at the large sight-opening 13 in the dial 8.) The numerals from 1 to 100, inclusive, appear at the small sightopening 14 when the disk 9 is rotated.

Mounted upon the central pivot 10, one upon each side of said rotary disk 9, are rotary screens 15, and each of these screens is pro- Vided with a small sight-opening 16 near its periphery, which is adapted to register with the adjacent small sight-opening 7 or 14:, and said screens are also provided with a volute line of sight-openings 17 18, which line extends from near the center of said screens to near the periphery thereof and completely encircles the pivot 10, as shown more clearly in Fig. 6. The sight-openings nearest the center are smallest in extent, and the length of said openings gradually increases as they approach the periphery of the screen. Said screens are ind ependently rcvoluble by means of a small handle 19, projecting from the circular disk 20, located upon the exterior of the dials 1 and S, and the said disk is rigidly secured to a metallic hub 21, and said hub is loosely mounted upon said central pivot 10, while the inner end of said hub is provided with an additional metallic disk 22, which is provided with fingers or prongs 23, which lat ter are punched out of the metal of said disk 22 and are bent inwardly and driven through apertures in the said screens 15 and then bent down upon the material composing said screens, as shown more plainly in Figs. 6 and '7, so that said screens will rotate when said disks 20 are rotated by means of their handles 19. For locking the said disks and screens in position I provide upon the exteriorot each of the dials 1 and 8 a cla p 24, which is adapted to be forcibly urged into contact with the adjacent edge of the disk 20 by means of the thumb-screw 25.

My device is educational, because it may be used as an adjunct to recitation in schoolrooms. It is advertising, because it may contain cards and samples, and any small article may be placed upon or in the rotary disk 9, as shown in Fig. 5, and can be immediately referred to by rotating the said disk until thedesired article appears at one of the sight openings.

I have found the device adapted for exhibition and advertising of jewelry, buttons, small hardware, tailors samples, oil-cloth, paints, stains, dyes, &C.

The disk may be revolved by hand by means of the projecting teeth 11 or it may be revolved automatically by means of any suitable motor, such as clockwork or an electric motor, and the power may be applied to the disk by causing a pinion to mesh with the said teeth 11. This pinion I have indicated by the numeral 26 in Fig. 4.

Instead of the matter shown in Fig. 5 upon the disk 9 I may place thereon the first reader or primer used in any school district and in any language, and it may be printed in the order in which it appears in the book, so that by rotating said disk the matter will appear at the large sight-opening G and may be exhibited in the home or any place of education, recitation, or literary exhibition.

Smaller sizes for toys and for advertising matter and also for all the above-mentioned purposes may be manufactured and may be held in the hand much as a common fan is held by providing the dial with a common handle. In such cases the pivots 2 and the bracket 3 will of course be done away with.

It will be observed that the shape of the dials 1 and S for some distance follows the curve of the periphery of the rotary disk 9 and that this curve is abruptly interrupted at each end by an abutment 27, which forms a stop for the operators fingers during operation.

For use in computing I provide the curved margin of the dial 8, adjacent the periphery of the rotary disk 9, with a series of numerals and graduation-marks 28, as shown in Fig. 4. The numerals are preferably arranged, as shown from 1 to 9, inclusive, in direct order-,reading from the top downwardly to the numeral 9, but from there down the numerals are arranged in reverse order from the numeral 8 to 1, inclusive.

The operation is as follows: When it is desired to use the device in making computation and it is desired to add six to six, for example, the operator will release the screen 15 by loosening the thumb-screw 25 and then he will by the handle 19 move the said screen until its small sight-aperture 16 registers with the sight-aperture 14 of the said dial 8, and then the said screen is secured in position by tightening the thumb-screw. The operator will then place one finger upon the teeth of the disk 9, which is immediately adjacent the lower numeral (3of the graduated scale at the right-hand of said dial' 8, and then the operator rotates said disk 9 by moving his finger downwardly until both finger and disk are stopped by contact of said finger with the abutment 27, and then he will find that the numeral 12 will appear at the sight-opening 14, thus showing that six has been added to six and twelve is the resulting sum. \Vhen it is desired to subtract, say, six from twelve, the operator places his finger upon the tooth opposite the numeral 6 in the direct graduated scale near the upper end of the latter and moves the said disk 9 in a reverse direction until his finger is stopped by the abutment 27 at the upper end of said scale and then the numeral 6 will again appear at the sight-opening 14, and so on for any of the various numerals. W'hen it is desired to multiply, say, six by six, the operator places his finger upon the tooth which is opposite the numeral (3 in the graduated scale and moves said tooth downwardly until his finger is stopped by the lower abutment 27 and repeats the operation six times, when the numeral 36 will appear at the sight-opening 14, proving that the desired multiplication has taken place. WVhen it is desired to exhibit articles or things in the next smaller annular line upon the disk 9, the operator will then make use of the large sightopening 13 and will adjust the screen 15 so that the line will appear at the longer sightopening 18 of said screen, and this will take place at the lower end of said sight-opening. Then by revolving the rotary disk 9 the various things and marks thereupon in the next adjacent annular line will appear at the sightopening, and so on for each smaller circle or line until the innermost sight-opening 17 of the screen is made use of.

- Either of the dials 1 or 8 maybe used with equal facility by swinging the same upon their pivots 2.

I claim 1. A device of the class specified, comprising a dial having a sight-opening, a movable screen having a series of sight-openings in a volute line, each of which openings is separated. a distance, and the length of each gradually increased as the periphery of the screen is approached, and arranged to limit the size of said sight-opening in said dial, and a movable disk having thereon a series of separate lines of matter arranged in concentric circles, and said lines adapted to be consecutively displayed through said sight-openings in said screen and dial, by moving the said screen and said disk, substantially as described.

2. A device of the class specified, comprising a dial having a sight-opening, a movable screen having a series of sight-openings of graduated length in a volute line and arranged to limit the size of said sight-openin g in said dial, a movable disk having thereon a series of separate lines of matter arranged in concentric circles, and said lines adapted to be consecutively displayed through said sight-openings in said screen and said dial, by moving the said screen and said disk; means whereby said disk is moved, means whereby said screen is moved, andmeans for locking said screen in position after it has been adjusted, substantially as described.

3. In a device of the class specified, afixed dial having a sight-opening, a rotary screen having a volute line of separate sight-openings of graduated length and arranged to cover a portion of the sight-opening of. said dial, a handle for use in adjusting said screen, a locking-clamp, a rotary disk arranged in j the rear of said screen and provided with annular lines of marks and things adapted to bedisplayed at said sight-openin gs of said screen and dial, teeth formed in the periphery of said disk, and a graduated scale adjacent said teeth for measuring the movement of said disk, substantiallyas described.

4. In a device of the class specified, a fixed dial having a sight-opening, a rotary screen having a volute line of separate sight-openings graduated in length and arranged to cover a portion of thesight-opening of said dial, a handle for use in adjusting said screen, a locking-clamp, a rotary disk arranged in the rear of said screen and provided with annular lines of marks and things adapted to be displayed at said sight-openings of said screen and dial, teeth formed in the periphery of said disk, a graduated scale adjacent said teeth for use in measuring the movement of said disk; a duplicate screen and dial arranged upon the opposite side of said disk,

the opposite side of said disk being also pro- Vided with annular lines of marks or things, and a suitable'bracket in which the device is pivotally supported, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ELLIS S. MORTON.

Witnesses:

E. E. LONGAN, M. G. IRIoN: 

